The 1.3.1 version of Fityk is provided as a free download on our software library. The file size of the latest installer available is 5 MB. This download was checked by our built-in antivirus and was rated as clean. This free software was originally developed by Marcin Wojdyr. The software relates to Education Tools.
From the developer:
Fityk is user friendly, open source software for nonlinear curve fitting and data analysis. It is primarily used by scientists to analyze data from experiments (powder diffraction, chromatography, photoluminescence and infrared and Raman spectroscopy), but can be used to fit any analytical functions to any kind of data. The program allows data visualization, background subtraction, separation of overlapping peaks and least squares fitting with the Levenberg-Marquardt algorithm. Macros can be used to automate repetitive tasks. Fityk has a dedicated support for placing and fitting bell-shaped functions such as Gaussian, Loretzian, Pearson 7, Voigt, Pseudo-Voigt and Doniach-Sunjic.
You may want to check out more software, such as DeadLine, Agelong Tree or ChaosPro, which might be related to Fityk.